./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:16:59,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:16:59,365 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 22:16:59,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:16:59,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:16:59,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:16:59,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:16:59,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:16:59,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:16:59,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:16:59,435 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:16:59,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:16:59,436 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:16:59,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:16:59,439 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:16:59,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:16:59,440 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:16:59,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:16:59,441 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:16:59,442 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:16:59,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:16:59,443 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:16:59,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:16:59,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:16:59,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:16:59,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:16:59,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:16:59,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:16:59,448 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:16:59,449 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:16:59,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:16:59,451 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:16:59,451 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:16:59,452 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:16:59,452 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:16:59,452 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:16:59,453 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 389f662f7096bd36438270dc54f296be4073de8eeb864b893c17044d6fb4cc06 [2023-11-06 22:16:59,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:16:59,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:16:59,873 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:16:59,875 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:16:59,876 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:16:59,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2023-11-06 22:17:03,239 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:17:03,909 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:17:03,909 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2023-11-06 22:17:03,953 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/data/9cf7615cf/c30ec32c480d4ac7b6966147dbe1a5bb/FLAGa78a6142a [2023-11-06 22:17:03,973 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/data/9cf7615cf/c30ec32c480d4ac7b6966147dbe1a5bb [2023-11-06 22:17:03,979 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:17:03,981 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:17:03,986 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:17:03,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:17:03,993 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:17:03,994 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:17:03" (1/1) ... [2023-11-06 22:17:03,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758127dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:03, skipping insertion in model container [2023-11-06 22:17:03,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:17:03" (1/1) ... [2023-11-06 22:17:04,196 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:17:05,422 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i[163507,163520] [2023-11-06 22:17:05,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:17:05,861 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:17:06,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5277] [2023-11-06 22:17:06,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5284] [2023-11-06 22:17:06,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5292-5293] [2023-11-06 22:17:06,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5301-5302] [2023-11-06 22:17:06,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [5349] [2023-11-06 22:17:06,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [5357-5358] [2023-11-06 22:17:06,033 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i[163507,163520] [2023-11-06 22:17:06,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5939] [2023-11-06 22:17:06,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5942] [2023-11-06 22:17:06,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5945] [2023-11-06 22:17:06,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5948] [2023-11-06 22:17:06,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [5951] [2023-11-06 22:17:06,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5967-5968] [2023-11-06 22:17:06,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5971-5972] [2023-11-06 22:17:06,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5975-5976] [2023-11-06 22:17:06,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5979-5980] [2023-11-06 22:17:06,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [5983-5984] [2023-11-06 22:17:06,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6007-6008] [2023-11-06 22:17:06,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6011-6012] [2023-11-06 22:17:06,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6015-6016] [2023-11-06 22:17:06,063 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6019-6020] [2023-11-06 22:17:06,063 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6023-6024] [2023-11-06 22:17:06,078 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6152] [2023-11-06 22:17:06,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6155] [2023-11-06 22:17:06,080 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6158] [2023-11-06 22:17:06,081 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6161] [2023-11-06 22:17:06,081 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" ((int *)argp): "ebx"); [6164] [2023-11-06 22:17:06,083 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" ((int *)argp), "i" (4UL)); [6176-6177] [2023-11-06 22:17:06,084 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6194-6195] [2023-11-06 22:17:06,085 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6198-6199] [2023-11-06 22:17:06,085 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6202-6203] [2023-11-06 22:17:06,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6206-6207] [2023-11-06 22:17:06,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___0): "0" (__pu_val___0), "c" (p): "ebx"); [6210-6211] [2023-11-06 22:17:06,087 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___0), "=r" (__val_gu___0): "0" (p), "i" (4UL)); [6223-6224] [2023-11-06 22:17:06,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6237-6238] [2023-11-06 22:17:06,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6241-6242] [2023-11-06 22:17:06,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6245-6246] [2023-11-06 22:17:06,089 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6249-6250] [2023-11-06 22:17:06,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___1): "0" (__pu_val___1), "c" (p): "ebx"); [6253-6254] [2023-11-06 22:17:06,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___1), "=r" (__val_gu___1): "0" (p), "i" (4UL)); [6266-6267] [2023-11-06 22:17:06,095 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6304-6305] [2023-11-06 22:17:06,096 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6308-6309] [2023-11-06 22:17:06,096 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6312-6313] [2023-11-06 22:17:06,097 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6316-6317] [2023-11-06 22:17:06,097 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu___2): "0" (__pu_val___2), "c" ((int *)argp): "ebx"); [6320-6321] [2023-11-06 22:17:06,098 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu___2), "=r" (__val_gu___2): "0" ((int *)argp), "i" (4UL)); [6333-6334] [2023-11-06 22:17:06,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:17:06,336 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:17:06,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06 WrapperNode [2023-11-06 22:17:06,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:17:06,341 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:17:06,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:17:06,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:17:06,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06" (1/1) ... [2023-11-06 22:17:06,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06" (1/1) ... [2023-11-06 22:17:06,576 INFO L138 Inliner]: procedures = 176, calls = 460, calls flagged for inlining = 92, calls inlined = 85, statements flattened = 1885 [2023-11-06 22:17:06,577 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:17:06,578 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:17:06,578 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:17:06,578 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:17:06,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06" (1/1) ... [2023-11-06 22:17:06,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06" (1/1) ... [2023-11-06 22:17:06,633 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06" (1/1) ... [2023-11-06 22:17:06,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06" (1/1) ... [2023-11-06 22:17:06,738 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06" (1/1) ... [2023-11-06 22:17:06,757 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06" (1/1) ... [2023-11-06 22:17:06,783 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06" (1/1) ... [2023-11-06 22:17:06,810 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06" (1/1) ... [2023-11-06 22:17:06,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:17:06,828 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:17:06,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:17:06,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:17:06,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06" (1/1) ... [2023-11-06 22:17:06,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:17:06,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:17:06,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:17:06,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:17:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-06 22:17:06,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-06 22:17:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_15 [2023-11-06 22:17:06,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_15 [2023-11-06 22:17:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_poll [2023-11-06 22:17:06,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_poll [2023-11-06 22:17:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 22:17:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-06 22:17:06,906 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-06 22:17:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 22:17:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:17:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-06 22:17:06,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-06 22:17:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:17:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-11-06 22:17:06,907 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-11-06 22:17:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2023-11-06 22:17:06,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2023-11-06 22:17:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-06 22:17:06,907 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-06 22:17:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-11-06 22:17:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-11-06 22:17:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 22:17:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 22:17:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure spin_trylock_bh [2023-11-06 22:17:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_trylock_bh [2023-11-06 22:17:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-06 22:17:06,911 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-06 22:17:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-11-06 22:17:06,911 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-11-06 22:17:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-11-06 22:17:06,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-11-06 22:17:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_synctty_ioctl [2023-11-06 22:17:06,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_synctty_ioctl [2023-11-06 22:17:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-06 22:17:06,912 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-06 22:17:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:17:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 22:17:06,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 22:17:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-11-06 22:17:06,913 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-11-06 22:17:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_close [2023-11-06 22:17:06,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_close [2023-11-06 22:17:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 22:17:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 22:17:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-06 22:17:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-06 22:17:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_print_buffer [2023-11-06 22:17:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_print_buffer [2023-11-06 22:17:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:17:06,915 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:17:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:17:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-06 22:17:06,916 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-06 22:17:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-06 22:17:06,917 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-06 22:17:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:17:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:17:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:17:06,918 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-11-06 22:17:06,918 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-11-06 22:17:06,918 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-06 22:17:06,918 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-06 22:17:06,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:17:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-11-06 22:17:06,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-11-06 22:17:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-06 22:17:06,919 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-06 22:17:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure sp_put [2023-11-06 22:17:06,919 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_put [2023-11-06 22:17:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:17:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:17:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-06 22:17:06,920 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-06 22:17:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_hangup [2023-11-06 22:17:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_hangup [2023-11-06 22:17:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-06 22:17:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-06 22:17:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 22:17:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 22:17:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-06 22:17:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-06 22:17:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure sp_get [2023-11-06 22:17:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure sp_get [2023-11-06 22:17:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-06 22:17:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-06 22:17:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:17:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2023-11-06 22:17:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2023-11-06 22:17:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-06 22:17:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-06 22:17:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-06 22:17:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-06 22:17:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-06 22:17:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:17:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:17:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_sync_push [2023-11-06 22:17:06,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_sync_push [2023-11-06 22:17:07,417 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:17:07,421 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:17:07,555 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-06 22:17:09,260 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:17:09,282 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:17:09,282 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 22:17:09,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:17:09 BoogieIcfgContainer [2023-11-06 22:17:09,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:17:09,290 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:17:09,290 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:17:09,294 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:17:09,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:17:03" (1/3) ... [2023-11-06 22:17:09,296 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c424cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:17:09, skipping insertion in model container [2023-11-06 22:17:09,298 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:17:06" (2/3) ... [2023-11-06 22:17:09,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c424cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:17:09, skipping insertion in model container [2023-11-06 22:17:09,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:17:09" (3/3) ... [2023-11-06 22:17:09,300 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ppp--ppp_synctty.ko-entry_point.cil.out.i [2023-11-06 22:17:09,320 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:17:09,320 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 22:17:09,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:17:09,403 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3249096, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:17:09,403 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 22:17:09,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 685 states, 519 states have (on average 1.4046242774566473) internal successors, (729), 535 states have internal predecessors, (729), 124 states have call successors, (124), 41 states have call predecessors, (124), 40 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) [2023-11-06 22:17:09,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 22:17:09,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:17:09,428 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:17:09,429 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:17:09,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:17:09,435 INFO L85 PathProgramCache]: Analyzing trace with hash -562005606, now seen corresponding path program 1 times [2023-11-06 22:17:09,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:17:09,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080875598] [2023-11-06 22:17:09,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:17:09,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:17:09,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:10,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:17:10,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:10,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:17:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:10,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:10,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:17:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:10,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:17:10,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:10,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:17:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:10,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:17:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:10,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:17:10,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:10,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:17:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:10,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:17:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:17:10,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:17:10,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080875598] [2023-11-06 22:17:10,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080875598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:17:10,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:17:10,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:17:10,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810929490] [2023-11-06 22:17:10,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:17:10,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:17:10,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:17:10,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:17:10,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:17:10,352 INFO L87 Difference]: Start difference. First operand has 685 states, 519 states have (on average 1.4046242774566473) internal successors, (729), 535 states have internal predecessors, (729), 124 states have call successors, (124), 41 states have call predecessors, (124), 40 states have return successors, (120), 118 states have call predecessors, (120), 120 states have call successors, (120) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:17:13,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:17:13,054 INFO L93 Difference]: Finished difference Result 2152 states and 3185 transitions. [2023-11-06 22:17:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:17:13,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 78 [2023-11-06 22:17:13,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:17:13,092 INFO L225 Difference]: With dead ends: 2152 [2023-11-06 22:17:13,093 INFO L226 Difference]: Without dead ends: 1456 [2023-11-06 22:17:13,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:17:13,113 INFO L413 NwaCegarLoop]: 707 mSDtfsCounter, 1332 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:17:13,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 1756 Invalid, 1195 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [320 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-06 22:17:13,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2023-11-06 22:17:13,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1300. [2023-11-06 22:17:13,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 996 states have (on average 1.3855421686746987) internal successors, (1380), 1016 states have internal predecessors, (1380), 225 states have call successors, (225), 79 states have call predecessors, (225), 78 states have return successors, (224), 220 states have call predecessors, (224), 224 states have call successors, (224) [2023-11-06 22:17:13,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1829 transitions. [2023-11-06 22:17:13,343 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1829 transitions. Word has length 78 [2023-11-06 22:17:13,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:17:13,345 INFO L495 AbstractCegarLoop]: Abstraction has 1300 states and 1829 transitions. [2023-11-06 22:17:13,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:17:13,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1829 transitions. [2023-11-06 22:17:13,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-06 22:17:13,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:17:13,353 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:17:13,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:17:13,354 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:17:13,354 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:17:13,355 INFO L85 PathProgramCache]: Analyzing trace with hash 447411548, now seen corresponding path program 1 times [2023-11-06 22:17:13,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:17:13,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977657025] [2023-11-06 22:17:13,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:17:13,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:17:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:13,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:17:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:13,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:17:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:13,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:13,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:17:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:13,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:17:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:13,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:17:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:13,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:17:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:13,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:17:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:13,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:17:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:13,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:17:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:13,833 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:17:13,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:17:13,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977657025] [2023-11-06 22:17:13,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977657025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:17:13,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:17:13,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:17:13,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162766273] [2023-11-06 22:17:13,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:17:13,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:17:13,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:17:13,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:17:13,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:17:13,838 INFO L87 Difference]: Start difference. First operand 1300 states and 1829 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:17:16,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:17:16,945 INFO L93 Difference]: Finished difference Result 4151 states and 5971 transitions. [2023-11-06 22:17:16,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:17:16,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 82 [2023-11-06 22:17:16,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:17:16,978 INFO L225 Difference]: With dead ends: 4151 [2023-11-06 22:17:16,978 INFO L226 Difference]: Without dead ends: 2867 [2023-11-06 22:17:16,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:17:16,994 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 1352 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:17:16,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1449 Valid, 3088 Invalid, 1942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [312 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-06 22:17:17,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2867 states. [2023-11-06 22:17:17,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2867 to 2663. [2023-11-06 22:17:17,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2663 states, 2042 states have (on average 1.386875612144956) internal successors, (2832), 2090 states have internal predecessors, (2832), 454 states have call successors, (454), 157 states have call predecessors, (454), 166 states have return successors, (511), 449 states have call predecessors, (511), 453 states have call successors, (511) [2023-11-06 22:17:17,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 3797 transitions. [2023-11-06 22:17:17,259 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 3797 transitions. Word has length 82 [2023-11-06 22:17:17,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:17:17,260 INFO L495 AbstractCegarLoop]: Abstraction has 2663 states and 3797 transitions. [2023-11-06 22:17:17,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-06 22:17:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 3797 transitions. [2023-11-06 22:17:17,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-11-06 22:17:17,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:17:17,271 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:17:17,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:17:17,272 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:17:17,272 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:17:17,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1267987911, now seen corresponding path program 1 times [2023-11-06 22:17:17,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:17:17,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15302224] [2023-11-06 22:17:17,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:17:17,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:17:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:17:17,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:17:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:17:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:17:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:17:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:17:17,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:17:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:17:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:17:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-06 22:17:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-06 22:17:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:17:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:17,671 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:17:17,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:17:17,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15302224] [2023-11-06 22:17:17,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15302224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:17:17,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:17:17,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:17:17,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365941238] [2023-11-06 22:17:17,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:17:17,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:17:17,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:17:17,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:17:17,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:17:17,676 INFO L87 Difference]: Start difference. First operand 2663 states and 3797 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 22:17:21,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:17:21,064 INFO L93 Difference]: Finished difference Result 7261 states and 10428 transitions. [2023-11-06 22:17:21,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:17:21,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2023-11-06 22:17:21,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:17:21,108 INFO L225 Difference]: With dead ends: 7261 [2023-11-06 22:17:21,108 INFO L226 Difference]: Without dead ends: 4622 [2023-11-06 22:17:21,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:17:21,131 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 2090 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 963 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 2068 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 963 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:17:21,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2165 Valid, 2068 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [963 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-06 22:17:21,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4622 states. [2023-11-06 22:17:21,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4622 to 4212. [2023-11-06 22:17:21,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4212 states, 3248 states have (on average 1.3882389162561577) internal successors, (4509), 3311 states have internal predecessors, (4509), 677 states have call successors, (677), 257 states have call predecessors, (677), 286 states have return successors, (795), 679 states have call predecessors, (795), 676 states have call successors, (795) [2023-11-06 22:17:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4212 states to 4212 states and 5981 transitions. [2023-11-06 22:17:21,475 INFO L78 Accepts]: Start accepts. Automaton has 4212 states and 5981 transitions. Word has length 128 [2023-11-06 22:17:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:17:21,476 INFO L495 AbstractCegarLoop]: Abstraction has 4212 states and 5981 transitions. [2023-11-06 22:17:21,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-06 22:17:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand 4212 states and 5981 transitions. [2023-11-06 22:17:21,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-06 22:17:21,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:17:21,496 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:17:21,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:17:21,501 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:17:21,501 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:17:21,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1073680590, now seen corresponding path program 1 times [2023-11-06 22:17:21,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:17:21,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323362558] [2023-11-06 22:17:21,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:17:21,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:17:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:17:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:17:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:17:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:17:21,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:17:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:17:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:17:21,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:17:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:17:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-06 22:17:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:17:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:17:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-06 22:17:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-06 22:17:21,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:21,946 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-06 22:17:21,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:17:21,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323362558] [2023-11-06 22:17:21,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323362558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:17:21,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:17:21,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:17:21,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537922617] [2023-11-06 22:17:21,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:17:21,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:17:21,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:17:21,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:17:21,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:17:21,954 INFO L87 Difference]: Start difference. First operand 4212 states and 5981 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:17:25,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:17:25,259 INFO L93 Difference]: Finished difference Result 10622 states and 15046 transitions. [2023-11-06 22:17:25,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:17:25,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2023-11-06 22:17:25,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:17:25,318 INFO L225 Difference]: With dead ends: 10622 [2023-11-06 22:17:25,319 INFO L226 Difference]: Without dead ends: 6434 [2023-11-06 22:17:25,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:17:25,337 INFO L413 NwaCegarLoop]: 889 mSDtfsCounter, 1150 mSDsluCounter, 1683 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 2572 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:17:25,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 2572 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-06 22:17:25,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6434 states. [2023-11-06 22:17:25,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6434 to 5942. [2023-11-06 22:17:25,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 4560 states have (on average 1.3732456140350877) internal successors, (6262), 4669 states have internal predecessors, (6262), 938 states have call successors, (938), 398 states have call predecessors, (938), 443 states have return successors, (1106), 938 states have call predecessors, (1106), 937 states have call successors, (1106) [2023-11-06 22:17:25,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 8306 transitions. [2023-11-06 22:17:25,854 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 8306 transitions. Word has length 149 [2023-11-06 22:17:25,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:17:25,855 INFO L495 AbstractCegarLoop]: Abstraction has 5942 states and 8306 transitions. [2023-11-06 22:17:25,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:17:25,856 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 8306 transitions. [2023-11-06 22:17:25,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 22:17:25,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:17:25,872 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:17:25,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:17:25,873 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:17:25,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:17:25,874 INFO L85 PathProgramCache]: Analyzing trace with hash -391920780, now seen corresponding path program 1 times [2023-11-06 22:17:25,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:17:25,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171952603] [2023-11-06 22:17:25,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:17:25,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:17:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:17:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:17:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:17:26,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:17:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:17:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:17:26,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:17:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:17:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:17:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:17:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:17:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-06 22:17:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-06 22:17:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:17:26,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:26,402 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2023-11-06 22:17:26,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:17:26,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171952603] [2023-11-06 22:17:26,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171952603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:17:26,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:17:26,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:17:26,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189778316] [2023-11-06 22:17:26,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:17:26,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:17:26,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:17:26,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:17:26,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:17:26,406 INFO L87 Difference]: Start difference. First operand 5942 states and 8306 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-06 22:17:30,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:17:30,941 INFO L93 Difference]: Finished difference Result 15558 states and 21862 transitions. [2023-11-06 22:17:30,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:17:30,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 151 [2023-11-06 22:17:30,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:17:31,019 INFO L225 Difference]: With dead ends: 15558 [2023-11-06 22:17:31,019 INFO L226 Difference]: Without dead ends: 9651 [2023-11-06 22:17:31,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:17:31,039 INFO L413 NwaCegarLoop]: 704 mSDtfsCounter, 1672 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 600 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1752 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 2385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 600 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:17:31,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1752 Valid, 2574 Invalid, 2385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [600 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-06 22:17:31,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9651 states. [2023-11-06 22:17:31,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9651 to 8819. [2023-11-06 22:17:31,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8819 states, 6842 states have (on average 1.371967261034785) internal successors, (9387), 6990 states have internal predecessors, (9387), 1295 states have call successors, (1295), 608 states have call predecessors, (1295), 681 states have return successors, (1530), 1304 states have call predecessors, (1530), 1294 states have call successors, (1530) [2023-11-06 22:17:31,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8819 states to 8819 states and 12212 transitions. [2023-11-06 22:17:31,813 INFO L78 Accepts]: Start accepts. Automaton has 8819 states and 12212 transitions. Word has length 151 [2023-11-06 22:17:31,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:17:31,815 INFO L495 AbstractCegarLoop]: Abstraction has 8819 states and 12212 transitions. [2023-11-06 22:17:31,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2023-11-06 22:17:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 8819 states and 12212 transitions. [2023-11-06 22:17:31,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-06 22:17:31,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:17:31,834 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:17:31,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:17:31,834 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:17:31,835 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:17:31,835 INFO L85 PathProgramCache]: Analyzing trace with hash -546433784, now seen corresponding path program 1 times [2023-11-06 22:17:31,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:17:31,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499697817] [2023-11-06 22:17:31,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:17:31,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:17:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:31,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:17:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:31,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:17:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:32,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:17:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:17:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:17:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:17:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:17:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:17:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:17:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:17:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:17:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-06 22:17:32,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-06 22:17:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:32,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:17:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:32,238 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2023-11-06 22:17:32,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:17:32,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499697817] [2023-11-06 22:17:32,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499697817] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:17:32,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:17:32,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:17:32,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99919871] [2023-11-06 22:17:32,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:17:32,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:17:32,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:17:32,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:17:32,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:17:32,242 INFO L87 Difference]: Start difference. First operand 8819 states and 12212 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:17:35,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:17:35,259 INFO L93 Difference]: Finished difference Result 14302 states and 20129 transitions. [2023-11-06 22:17:35,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:17:35,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 156 [2023-11-06 22:17:35,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:17:35,321 INFO L225 Difference]: With dead ends: 14302 [2023-11-06 22:17:35,321 INFO L226 Difference]: Without dead ends: 9653 [2023-11-06 22:17:35,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:17:35,343 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 557 mSDsluCounter, 2253 mSDsCounter, 0 mSdLazyCounter, 1561 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 1561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:17:35,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 2910 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 1561 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-06 22:17:35,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9653 states. [2023-11-06 22:17:35,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9653 to 8839. [2023-11-06 22:17:35,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8839 states, 6862 states have (on average 1.370883124453512) internal successors, (9407), 7010 states have internal predecessors, (9407), 1295 states have call successors, (1295), 608 states have call predecessors, (1295), 681 states have return successors, (1530), 1304 states have call predecessors, (1530), 1294 states have call successors, (1530) [2023-11-06 22:17:36,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8839 states to 8839 states and 12232 transitions. [2023-11-06 22:17:36,021 INFO L78 Accepts]: Start accepts. Automaton has 8839 states and 12232 transitions. Word has length 156 [2023-11-06 22:17:36,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:17:36,022 INFO L495 AbstractCegarLoop]: Abstraction has 8839 states and 12232 transitions. [2023-11-06 22:17:36,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-06 22:17:36,023 INFO L276 IsEmpty]: Start isEmpty. Operand 8839 states and 12232 transitions. [2023-11-06 22:17:36,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-06 22:17:36,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:17:36,044 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:17:36,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:17:36,044 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:17:36,045 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:17:36,045 INFO L85 PathProgramCache]: Analyzing trace with hash -16176983, now seen corresponding path program 1 times [2023-11-06 22:17:36,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:17:36,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910964520] [2023-11-06 22:17:36,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:17:36,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:17:36,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:17:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:17:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:17:36,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:17:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:17:36,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:17:36,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:17:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:17:36,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:17:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:17:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:17:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-06 22:17:36,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:36,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:37,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-06 22:17:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:37,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:37,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:37,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:37,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-06 22:17:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2023-11-06 22:17:37,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:17:37,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910964520] [2023-11-06 22:17:37,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910964520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:17:37,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:17:37,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 22:17:37,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28413296] [2023-11-06 22:17:37,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:17:37,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 22:17:37,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:17:37,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 22:17:37,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:17:37,223 INFO L87 Difference]: Start difference. First operand 8839 states and 12232 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-06 22:17:42,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:17:42,334 INFO L93 Difference]: Finished difference Result 19685 states and 27378 transitions. [2023-11-06 22:17:42,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-06 22:17:42,335 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) Word has length 158 [2023-11-06 22:17:42,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:17:42,382 INFO L225 Difference]: With dead ends: 19685 [2023-11-06 22:17:42,382 INFO L226 Difference]: Without dead ends: 10881 [2023-11-06 22:17:42,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=527, Unknown=0, NotChecked=0, Total=702 [2023-11-06 22:17:42,409 INFO L413 NwaCegarLoop]: 658 mSDtfsCounter, 3243 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 3328 mSolverCounterSat, 1545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 4873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1545 IncrementalHoareTripleChecker+Valid, 3328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:17:42,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3335 Valid, 2831 Invalid, 4873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1545 Valid, 3328 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-06 22:17:42,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10881 states. [2023-11-06 22:17:43,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10881 to 9227. [2023-11-06 22:17:43,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9227 states, 7118 states have (on average 1.360635009834223) internal successors, (9685), 7264 states have internal predecessors, (9685), 1387 states have call successors, (1387), 686 states have call predecessors, (1387), 721 states have return successors, (1560), 1368 states have call predecessors, (1560), 1386 states have call successors, (1560) [2023-11-06 22:17:43,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9227 states to 9227 states and 12632 transitions. [2023-11-06 22:17:43,172 INFO L78 Accepts]: Start accepts. Automaton has 9227 states and 12632 transitions. Word has length 158 [2023-11-06 22:17:43,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:17:43,173 INFO L495 AbstractCegarLoop]: Abstraction has 9227 states and 12632 transitions. [2023-11-06 22:17:43,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 8 states have internal predecessors, (87), 5 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (18), 6 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-06 22:17:43,173 INFO L276 IsEmpty]: Start isEmpty. Operand 9227 states and 12632 transitions. [2023-11-06 22:17:43,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-06 22:17:43,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:17:43,203 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:17:43,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:17:43,203 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:17:43,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:17:43,204 INFO L85 PathProgramCache]: Analyzing trace with hash 936362348, now seen corresponding path program 1 times [2023-11-06 22:17:43,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:17:43,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069285781] [2023-11-06 22:17:43,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:17:43,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:17:43,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:17:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:17:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:43,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:17:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:17:43,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:17:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:17:43,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:17:43,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:17:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:17:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:17:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:17:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:17:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:17:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:43,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-06 22:17:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:44,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:44,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:44,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-11-06 22:17:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:44,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-11-06 22:17:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:44,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:44,248 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2023-11-06 22:17:44,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:17:44,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069285781] [2023-11-06 22:17:44,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069285781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:17:44,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:17:44,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:17:44,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799400038] [2023-11-06 22:17:44,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:17:44,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:17:44,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:17:44,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:17:44,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:17:44,253 INFO L87 Difference]: Start difference. First operand 9227 states and 12632 transitions. Second operand has 8 states, 8 states have (on average 13.5) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 22:17:47,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:17:47,689 INFO L93 Difference]: Finished difference Result 19477 states and 26888 transitions. [2023-11-06 22:17:47,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:17:47,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 196 [2023-11-06 22:17:47,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:17:47,737 INFO L225 Difference]: With dead ends: 19477 [2023-11-06 22:17:47,738 INFO L226 Difference]: Without dead ends: 10285 [2023-11-06 22:17:47,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:17:47,771 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 447 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 3308 SdHoareTripleChecker+Invalid, 2102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:17:47,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 3308 Invalid, 2102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-06 22:17:47,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10285 states. [2023-11-06 22:17:48,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10285 to 9291. [2023-11-06 22:17:48,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9291 states, 7166 states have (on average 1.3582193692436506) internal successors, (9733), 7312 states have internal predecessors, (9733), 1387 states have call successors, (1387), 686 states have call predecessors, (1387), 737 states have return successors, (1584), 1384 states have call predecessors, (1584), 1386 states have call successors, (1584) [2023-11-06 22:17:48,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9291 states to 9291 states and 12704 transitions. [2023-11-06 22:17:48,541 INFO L78 Accepts]: Start accepts. Automaton has 9291 states and 12704 transitions. Word has length 196 [2023-11-06 22:17:48,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:17:48,542 INFO L495 AbstractCegarLoop]: Abstraction has 9291 states and 12704 transitions. [2023-11-06 22:17:48,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.5) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-06 22:17:48,542 INFO L276 IsEmpty]: Start isEmpty. Operand 9291 states and 12704 transitions. [2023-11-06 22:17:48,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-11-06 22:17:48,569 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:17:48,570 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:17:48,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 22:17:48,570 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:17:48,571 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:17:48,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1195071348, now seen corresponding path program 1 times [2023-11-06 22:17:48,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:17:48,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440997564] [2023-11-06 22:17:48,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:17:48,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:17:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:17:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:17:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:17:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:17:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:17:49,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:17:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:17:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:17:49,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:17:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:17:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:17:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:17:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:17:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:17:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-06 22:17:49,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:17:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-06 22:17:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:49,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-11-06 22:17:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:17:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:49,922 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2023-11-06 22:17:49,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:17:49,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440997564] [2023-11-06 22:17:49,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440997564] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:17:49,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186684061] [2023-11-06 22:17:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:17:49,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:17:49,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:17:49,928 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:17:49,973 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:17:50,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:17:50,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 1374 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 22:17:50,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:17:51,008 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 98 proven. 8 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2023-11-06 22:17:51,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:17:51,675 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2023-11-06 22:17:51,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186684061] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:17:51,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:17:51,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 9] total 20 [2023-11-06 22:17:51,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644297117] [2023-11-06 22:17:51,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:17:51,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-06 22:17:51,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:17:51,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-06 22:17:51,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2023-11-06 22:17:51,681 INFO L87 Difference]: Start difference. First operand 9291 states and 12704 transitions. Second operand has 20 states, 20 states have (on average 10.7) internal successors, (214), 17 states have internal predecessors, (214), 9 states have call successors, (57), 9 states have call predecessors, (57), 11 states have return successors, (44), 13 states have call predecessors, (44), 9 states have call successors, (44) [2023-11-06 22:18:05,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:05,403 INFO L93 Difference]: Finished difference Result 33493 states and 46531 transitions. [2023-11-06 22:18:05,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-11-06 22:18:05,404 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 10.7) internal successors, (214), 17 states have internal predecessors, (214), 9 states have call successors, (57), 9 states have call predecessors, (57), 11 states have return successors, (44), 13 states have call predecessors, (44), 9 states have call successors, (44) Word has length 203 [2023-11-06 22:18:05,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:05,549 INFO L225 Difference]: With dead ends: 33493 [2023-11-06 22:18:05,549 INFO L226 Difference]: Without dead ends: 28384 [2023-11-06 22:18:05,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 446 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=556, Invalid=1994, Unknown=0, NotChecked=0, Total=2550 [2023-11-06 22:18:05,574 INFO L413 NwaCegarLoop]: 1150 mSDtfsCounter, 11564 mSDsluCounter, 8332 mSDsCounter, 0 mSdLazyCounter, 7611 mSolverCounterSat, 4443 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11849 SdHoareTripleChecker+Valid, 9482 SdHoareTripleChecker+Invalid, 12054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4443 IncrementalHoareTripleChecker+Valid, 7611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:05,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11849 Valid, 9482 Invalid, 12054 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4443 Valid, 7611 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2023-11-06 22:18:05,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28384 states. [2023-11-06 22:18:07,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28384 to 26110. [2023-11-06 22:18:07,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26110 states, 19955 states have (on average 1.3524931094963668) internal successors, (26989), 20483 states have internal predecessors, (26989), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2163 states have return successors, (5116), 4000 states have call predecessors, (5116), 3990 states have call successors, (5116) [2023-11-06 22:18:07,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26110 states to 26110 states and 36096 transitions. [2023-11-06 22:18:07,914 INFO L78 Accepts]: Start accepts. Automaton has 26110 states and 36096 transitions. Word has length 203 [2023-11-06 22:18:07,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:07,916 INFO L495 AbstractCegarLoop]: Abstraction has 26110 states and 36096 transitions. [2023-11-06 22:18:07,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 10.7) internal successors, (214), 17 states have internal predecessors, (214), 9 states have call successors, (57), 9 states have call predecessors, (57), 11 states have return successors, (44), 13 states have call predecessors, (44), 9 states have call successors, (44) [2023-11-06 22:18:07,916 INFO L276 IsEmpty]: Start isEmpty. Operand 26110 states and 36096 transitions. [2023-11-06 22:18:07,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-11-06 22:18:07,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:07,951 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 13, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:07,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:18:08,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0df108bf-798d-4743-9eff-15fd3a76ddf0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:18:08,171 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:08,171 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:08,171 INFO L85 PathProgramCache]: Analyzing trace with hash 306914941, now seen corresponding path program 1 times [2023-11-06 22:18:08,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:18:08,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412304939] [2023-11-06 22:18:08,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:08,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:18:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:18:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:18:08,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:18:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:18:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:18:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:18:08,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:18:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:18:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:18:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:18:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:18:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:18:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-06 22:18:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-06 22:18:08,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-06 22:18:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-06 22:18:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-11-06 22:18:08,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:08,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:18:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-11-06 22:18:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:08,864 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2023-11-06 22:18:08,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:18:08,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412304939] [2023-11-06 22:18:08,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412304939] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:08,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:08,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:18:08,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69974288] [2023-11-06 22:18:08,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:08,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:18:08,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:18:08,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:18:08,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:18:08,869 INFO L87 Difference]: Start difference. First operand 26110 states and 36096 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-06 22:18:14,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:14,593 INFO L93 Difference]: Finished difference Result 63899 states and 88393 transitions. [2023-11-06 22:18:14,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:18:14,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 221 [2023-11-06 22:18:14,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:14,911 INFO L225 Difference]: With dead ends: 63899 [2023-11-06 22:18:14,911 INFO L226 Difference]: Without dead ends: 37824 [2023-11-06 22:18:14,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:18:14,969 INFO L413 NwaCegarLoop]: 1150 mSDtfsCounter, 1465 mSDsluCounter, 2075 mSDsCounter, 0 mSdLazyCounter, 2016 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 3225 SdHoareTripleChecker+Invalid, 2471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 2016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:14,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 3225 Invalid, 2471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 2016 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-06 22:18:15,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37824 states. [2023-11-06 22:18:17,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37824 to 26150. [2023-11-06 22:18:17,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26150 states, 19995 states have (on average 1.3517879469867466) internal successors, (27029), 20523 states have internal predecessors, (27029), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2163 states have return successors, (5116), 4000 states have call predecessors, (5116), 3990 states have call successors, (5116) [2023-11-06 22:18:17,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26150 states to 26150 states and 36136 transitions. [2023-11-06 22:18:17,750 INFO L78 Accepts]: Start accepts. Automaton has 26150 states and 36136 transitions. Word has length 221 [2023-11-06 22:18:17,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:17,751 INFO L495 AbstractCegarLoop]: Abstraction has 26150 states and 36136 transitions. [2023-11-06 22:18:17,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-06 22:18:17,751 INFO L276 IsEmpty]: Start isEmpty. Operand 26150 states and 36136 transitions. [2023-11-06 22:18:17,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-11-06 22:18:17,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:17,774 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:17,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:18:17,774 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:17,775 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:17,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1254270731, now seen corresponding path program 1 times [2023-11-06 22:18:17,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:18:17,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598729801] [2023-11-06 22:18:17,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:17,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:18:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:18:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:18:18,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:18:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:18:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:18:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:18:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:18:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:18:18,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:18:18,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:18:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:18:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:18:18,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:18:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:18:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-06 22:18:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:18:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-06 22:18:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-11-06 22:18:18,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2023-11-06 22:18:18,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:18:18,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598729801] [2023-11-06 22:18:18,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598729801] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:18,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:18,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:18:18,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469798198] [2023-11-06 22:18:18,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:18,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:18:18,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:18:18,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:18:18,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:18:18,250 INFO L87 Difference]: Start difference. First operand 26150 states and 36136 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-06 22:18:22,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:22,429 INFO L93 Difference]: Finished difference Result 49592 states and 69501 transitions. [2023-11-06 22:18:22,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:18:22,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 205 [2023-11-06 22:18:22,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:22,568 INFO L225 Difference]: With dead ends: 49592 [2023-11-06 22:18:22,569 INFO L226 Difference]: Without dead ends: 27624 [2023-11-06 22:18:22,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:18:22,645 INFO L413 NwaCegarLoop]: 676 mSDtfsCounter, 685 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 1431 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 2726 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 1431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:22,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 2726 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 1431 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-06 22:18:22,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27624 states. [2023-11-06 22:18:24,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27624 to 26134. [2023-11-06 22:18:24,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26134 states, 19979 states have (on average 1.3497672556183993) internal successors, (26967), 20507 states have internal predecessors, (26967), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2163 states have return successors, (5104), 4000 states have call predecessors, (5104), 3990 states have call successors, (5104) [2023-11-06 22:18:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26134 states to 26134 states and 36062 transitions. [2023-11-06 22:18:24,994 INFO L78 Accepts]: Start accepts. Automaton has 26134 states and 36062 transitions. Word has length 205 [2023-11-06 22:18:24,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:24,995 INFO L495 AbstractCegarLoop]: Abstraction has 26134 states and 36062 transitions. [2023-11-06 22:18:24,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (23), 5 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-06 22:18:24,996 INFO L276 IsEmpty]: Start isEmpty. Operand 26134 states and 36062 transitions. [2023-11-06 22:18:25,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-06 22:18:25,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:25,025 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:25,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:18:25,026 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:25,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:25,027 INFO L85 PathProgramCache]: Analyzing trace with hash 196252132, now seen corresponding path program 1 times [2023-11-06 22:18:25,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:18:25,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948138782] [2023-11-06 22:18:25,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:25,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:18:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:18:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:18:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:18:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:18:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:18:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:18:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:18:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:18:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:18:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:18:25,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:18:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:18:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:18:25,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:25,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:18:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-06 22:18:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:25,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:18:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-06 22:18:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:25,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-06 22:18:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:25,786 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-06 22:18:25,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:18:25,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948138782] [2023-11-06 22:18:25,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948138782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:25,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:25,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:18:25,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053972193] [2023-11-06 22:18:25,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:25,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:18:25,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:18:25,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:18:25,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:18:25,790 INFO L87 Difference]: Start difference. First operand 26134 states and 36062 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-06 22:18:31,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:31,472 INFO L93 Difference]: Finished difference Result 62419 states and 88694 transitions. [2023-11-06 22:18:31,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:18:31,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2023-11-06 22:18:31,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:31,589 INFO L225 Difference]: With dead ends: 62419 [2023-11-06 22:18:31,589 INFO L226 Difference]: Without dead ends: 36320 [2023-11-06 22:18:31,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:18:31,644 INFO L413 NwaCegarLoop]: 1179 mSDtfsCounter, 1031 mSDsluCounter, 3220 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 4399 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:31,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1124 Valid, 4399 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-06 22:18:31,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36320 states. [2023-11-06 22:18:34,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36320 to 26194. [2023-11-06 22:18:34,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26194 states, 20039 states have (on average 1.348719996007785) internal successors, (27027), 20567 states have internal predecessors, (27027), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2163 states have return successors, (5104), 4000 states have call predecessors, (5104), 3990 states have call successors, (5104) [2023-11-06 22:18:34,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26194 states to 26194 states and 36122 transitions. [2023-11-06 22:18:34,371 INFO L78 Accepts]: Start accepts. Automaton has 26194 states and 36122 transitions. Word has length 207 [2023-11-06 22:18:34,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:34,372 INFO L495 AbstractCegarLoop]: Abstraction has 26194 states and 36122 transitions. [2023-11-06 22:18:34,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-06 22:18:34,373 INFO L276 IsEmpty]: Start isEmpty. Operand 26194 states and 36122 transitions. [2023-11-06 22:18:34,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-06 22:18:34,399 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:34,400 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:34,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:18:34,400 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:34,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:34,401 INFO L85 PathProgramCache]: Analyzing trace with hash 485581826, now seen corresponding path program 1 times [2023-11-06 22:18:34,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:18:34,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709511078] [2023-11-06 22:18:34,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:34,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:18:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:18:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:18:35,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:18:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:18:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:18:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:18:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:18:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:18:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:18:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:18:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:18:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:18:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:18:35,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:18:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-06 22:18:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:35,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:35,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:36,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:18:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:36,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-06 22:18:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:36,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:36,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:36,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-06 22:18:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:36,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-06 22:18:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:36,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:36,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:36,070 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-06 22:18:36,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:18:36,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709511078] [2023-11-06 22:18:36,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709511078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:36,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:36,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-06 22:18:36,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213057814] [2023-11-06 22:18:36,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:36,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-06 22:18:36,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:18:36,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-06 22:18:36,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:18:36,076 INFO L87 Difference]: Start difference. First operand 26194 states and 36122 transitions. Second operand has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 8 states have internal predecessors, (117), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-06 22:18:46,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:46,340 INFO L93 Difference]: Finished difference Result 63979 states and 91232 transitions. [2023-11-06 22:18:46,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:18:46,341 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 8 states have internal predecessors, (117), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 211 [2023-11-06 22:18:46,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:46,463 INFO L225 Difference]: With dead ends: 63979 [2023-11-06 22:18:46,463 INFO L226 Difference]: Without dead ends: 37820 [2023-11-06 22:18:46,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-11-06 22:18:46,506 INFO L413 NwaCegarLoop]: 1175 mSDtfsCounter, 2327 mSDsluCounter, 6198 mSDsCounter, 0 mSdLazyCounter, 3288 mSolverCounterSat, 831 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2344 SdHoareTripleChecker+Valid, 7373 SdHoareTripleChecker+Invalid, 4119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 831 IncrementalHoareTripleChecker+Valid, 3288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:46,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2344 Valid, 7373 Invalid, 4119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [831 Valid, 3288 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-06 22:18:46,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37820 states. [2023-11-06 22:18:50,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37820 to 26374. [2023-11-06 22:18:50,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26374 states, 20219 states have (on average 1.3456155101637075) internal successors, (27207), 20747 states have internal predecessors, (27207), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2163 states have return successors, (5104), 4000 states have call predecessors, (5104), 3990 states have call successors, (5104) [2023-11-06 22:18:50,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26374 states to 26374 states and 36302 transitions. [2023-11-06 22:18:50,839 INFO L78 Accepts]: Start accepts. Automaton has 26374 states and 36302 transitions. Word has length 211 [2023-11-06 22:18:50,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:18:50,840 INFO L495 AbstractCegarLoop]: Abstraction has 26374 states and 36302 transitions. [2023-11-06 22:18:50,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 8 states have internal predecessors, (117), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-06 22:18:50,840 INFO L276 IsEmpty]: Start isEmpty. Operand 26374 states and 36302 transitions. [2023-11-06 22:18:50,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-06 22:18:50,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:18:50,859 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:18:50,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-06 22:18:50,859 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:18:50,860 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:18:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash -285151740, now seen corresponding path program 1 times [2023-11-06 22:18:50,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:18:50,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141040811] [2023-11-06 22:18:50,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:18:50,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:18:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:18:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:18:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:18:51,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:18:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:18:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:18:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:18:51,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:18:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:18:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:18:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:18:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:18:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:18:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:18:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-06 22:18:51,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:18:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-06 22:18:51,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-06 22:18:51,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-06 22:18:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:18:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:18:51,316 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-06 22:18:51,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:18:51,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141040811] [2023-11-06 22:18:51,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141040811] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:18:51,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:18:51,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-06 22:18:51,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855295656] [2023-11-06 22:18:51,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:18:51,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:18:51,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:18:51,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:18:51,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:18:51,323 INFO L87 Difference]: Start difference. First operand 26374 states and 36302 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-06 22:18:57,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:18:57,357 INFO L93 Difference]: Finished difference Result 54307 states and 74998 transitions. [2023-11-06 22:18:57,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:18:57,358 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 211 [2023-11-06 22:18:57,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:18:57,461 INFO L225 Difference]: With dead ends: 54307 [2023-11-06 22:18:57,461 INFO L226 Difference]: Without dead ends: 27968 [2023-11-06 22:18:57,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:18:57,496 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 661 mSDsluCounter, 2033 mSDsCounter, 0 mSdLazyCounter, 1466 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 2706 SdHoareTripleChecker+Invalid, 1896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 1466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:18:57,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 2706 Invalid, 1896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 1466 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-06 22:18:57,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27968 states. [2023-11-06 22:19:00,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27968 to 26434. [2023-11-06 22:19:00,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26434 states, 20279 states have (on average 1.3445929286453968) internal successors, (27267), 20807 states have internal predecessors, (27267), 3991 states have call successors, (3991), 1900 states have call predecessors, (3991), 2163 states have return successors, (5104), 4000 states have call predecessors, (5104), 3990 states have call successors, (5104) [2023-11-06 22:19:00,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26434 states to 26434 states and 36362 transitions. [2023-11-06 22:19:00,859 INFO L78 Accepts]: Start accepts. Automaton has 26434 states and 36362 transitions. Word has length 211 [2023-11-06 22:19:00,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:19:00,860 INFO L495 AbstractCegarLoop]: Abstraction has 26434 states and 36362 transitions. [2023-11-06 22:19:00,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-06 22:19:00,860 INFO L276 IsEmpty]: Start isEmpty. Operand 26434 states and 36362 transitions. [2023-11-06 22:19:00,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-11-06 22:19:00,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:19:00,872 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:19:00,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-06 22:19:00,873 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:19:00,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:19:00,874 INFO L85 PathProgramCache]: Analyzing trace with hash -871427962, now seen corresponding path program 1 times [2023-11-06 22:19:00,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:19:00,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696836681] [2023-11-06 22:19:00,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:19:00,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:19:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:19:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:19:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:19:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-06 22:19:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-06 22:19:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-06 22:19:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-11-06 22:19:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:19:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:19:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:19:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:19:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 22:19:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-06 22:19:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:19:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-06 22:19:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-06 22:19:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:19:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:19:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-06 22:19:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-06 22:19:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:19:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-06 22:19:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-06 22:19:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-06 22:19:03,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:19:03,291 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2023-11-06 22:19:03,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:19:03,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696836681] [2023-11-06 22:19:03,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696836681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:19:03,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:19:03,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-06 22:19:03,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516234153] [2023-11-06 22:19:03,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:19:03,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:19:03,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:19:03,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:19:03,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:19:03,299 INFO L87 Difference]: Start difference. First operand 26434 states and 36362 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-06 22:19:11,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:19:11,802 INFO L93 Difference]: Finished difference Result 54997 states and 76210 transitions. [2023-11-06 22:19:11,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-06 22:19:11,803 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 211 [2023-11-06 22:19:11,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:19:11,920 INFO L225 Difference]: With dead ends: 54997 [2023-11-06 22:19:11,921 INFO L226 Difference]: Without dead ends: 28598 [2023-11-06 22:19:11,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:19:11,986 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 256 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 2402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:19:11,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 3544 Invalid, 2402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 2253 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-11-06 22:19:12,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28598 states.